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 GPT-5OpenAI | GPT-4.1 OpenAI |  DeepSeek-V4-ProDeepSeek |  Grok 4xAI | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | DeepSeek | xAI |
| Family | GPT | GPT | DeepSeek | Grok |
| Release date | 2025-08-07 | 2025-04-14 | 2026-04-22 | 2025-07-09 |
| Context window | 400,000 tokens | 1,000,000 tokens | 1,000,000 tokens | 256,000 tokens |
| Parameters | — | — | 1.6T (49B active) | — |
| Modality | text, vision, audio | text, vision | text | text |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — | DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs. | — |
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Gemini 2.5 Flashmax
Claude 4.6 SonnetmaxGPT-5.5maxDeepSeek-V4-Flashmax
Qwen3.6-27BmaxGemini 3 PromaxDeepSeek-V4-Pro✓Claude 4.7 OpusmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5✓Grok 4✓Qwen3 235Bmaxo3maxGPT-4.1✓
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Mistral Large 2maxMax 4 models. Remove one to add another.